Hot-blast stove



UNITED STATES PATENT CFFICE.

CHARLES II. FOOTE, OF CHICAGO, ILLINOIS.

HOT-BLAST STOVE.

SPECIFICATION forming part of Letters Patent No. 429,342, dated June 3, 1890.

Application filed March 5, 1888. Renewed December 18, 1889. $erial No. 334,154. (No model.)

To all whom it may concern:

Be it known that I, CHARLES H. FOOTE, a citizen of the United States, residing at Chicago, in the county of Cook, State of Illinois, have invented certain new and useful ing drawings, forming part of this specification.

My present invention has relation more particularly to the construction of the partition-walls which serve to divide the lattice brick-work of the stove; and the object of my invention is, first, to provide means whereby the construction of the lattice brick-work whereof the lines are composed maybe effected with more perfect alignment, and, secondly, to enable the partition-walls to be made at less expense and with greater strength than is possible with the methods of building such stoves at present employed.

My invention therefore consists in the various novel features of construction hereinafter described, illustrated in the accompany ing drawings, and more particularly pointed out in the claims at the end of this specification.

Figure 1 is a view in horizontal section through a hot-blast stove embodying my invention, a portion of the upper course of bricks and the two main partition-walls being broken away toexpose the subjacent courses. ,Fig. 2 is a perspective view of a portion of one of the main partition-walls and the adjacent lattice-bricks. Fig. 3 is a detail view of a portion of one partition-wall and adjacent lattice-bricks, showing a modified form of the invention. Fig. 4 is a view similar to Fig. 3, but illustrating a further modification.

A designates the outer cylindrical wall of the stove, which is shown as formed with the usual combustion flue B and the lattice brick-work C, divided into a series of main vertical passages by means of the partitionwalls D E F. The partition-walls D and E (illustratedin Fig. 1) are constructed of bricks G, the form of which is more particularly illustrated in Fig. 2 of the drawings. Each of these bricks is by preference formed with its length and breadth equal and with its corners cut away, as at g. and with the V-shaped notches or grooves g cut through its edges at their center. The purpose of thus forming the bricks G with the truncated corners and with the grooved edges is to provide the faces of the partition-wall with a series of vertical grooves or channels adapted to receive the ends of the lattice-bricks H and afford a perfect guide for the accurate alignment of such bricks during. the construction of the latticework, and as well, also, securely retain the bricks against danger of displacement during use.

In constructing the partition-walls D and E the bricks G will be laid in courses after the manner shown more particularly in Fig. 2 of the drawings-that is to say, the second course of bricks G will be laid upon the first course in such manner as to break joint therewith, and it will be observed that the grooves formed by the cut-away corners g of the first course ofbricks G will coincide with the grooves g, formed in the edges of the superposed course of bricks. It will thus be seen that there is formed a series of continuous grooves from top to bottom of the partition-Wall for the reception of the correspondiugly-shaped. ends of the lattice-bricks H, and these grooves not only serve to enable the lattice-bricks to be set in place with perfect alignment, but also securely retain such bricks against danger of displacement. The ends of the lattice-bricks entering the grooves of the bricks G serve to more securely lock the courses of these bricks together and render the Wall, more compact, since they act as keys between the adjacent courses of bricks. In forming the partitionwalls D and E, I prefer to lay the alternate courses of bricks G in such manner that the grooves g of their edges shall coincide at a central point of the wall, (this being possible by reason of the fact that the breadth and length of the bricks are equal,) and within the space thus formed by these grooves ,9 suitable fire-clay or cement will be placed, which will serve to more securely lock the bricks together, and thus give increased strength to the wall. The partition-wall F is not shown as formed of bricks, the edges of which are provided with grooves, since in practice it has been found that this partition-wall need not possess as great strength as the partition-walls nearer to the combustion-chamber of the stove. 'lhis partitioir wall F is therefore formed simply of bricks having their corners cut away, as shown, to form grooves adapted to receive the corre spondiugly-shaped ends of the bricks II of the lattice-work.

It will bereadily understood that the pre cise shape of the bricks G above described may be varied, as may also be the precise manner in which they are laid. Thus, for example, the corners of the bricks Gr might be cut away in such manner as to form curved grooves adapted to receive the lattice-work bricks having correspondingly curved or rounded ends, and if such construction be followed the grooves g in the edges of the bricks will also be of curved outline.

In the modification illustrated in Fig. 4 the bricks forming the partition-wall have their corners cut away and their edges curved in a manner somewhat different from that illustrated in theabove described figures, and in this modification, also, the bricks of the lattice-work are formed of correspondingly mod ified construction. It will be readily seen, however, that while many modifications of the details of construction may be thus suggested each will befonnd to embody in whole or in part the underlying principles of my invention. So, also, it will be obvious that without departingfrom the spirit of my invention the partition-walls may be formed in part of other shapes of brick than those above described, and while I regard it as far preferable to have continuous grooves in the partition-walls to receive the ends of the lattice-bricks, it is plain that it would still be within the scope of my invention to have the grooves broken by alternate rows of bricks, the lattice-bricks being so arranged or formed as to engage with interrupted grooves-such, for example, as those shown between the continuous grooves in Fig. 2 of the drawings.

I am well aware that it has been heretofore proposed to form the lattiee-work of a hotblast stove from bricks having mitered ends, the ends of certain of the bricks being held within the spaces formed adjacent the abutting ends of others. An example of this type of lattice brick-work is illustrated in Patent No. 292,188, granted to P. L. \Veimer January 22, 1884. In such patent, however, there are not shown anypartition-walls adapted to cause the heated gases to alternately travel up and down the stove, nor are there shown in such patent any bricks capable of being practically utilized for building such walls. 011 the contrary, if attempt were made to use the bricks shown in the \Neimer patent in the formation of the partition-walls for a stove of that class in which partition-walls are employed for directing the travel of the gases, it would be found impossible to carry the wall to any height before it would topple over, andthe wall would be so weak that it could not stand the lateral strains upon it, nor would it be practicable to prevent the passage of gases through the spaces adjacent the abutting ends of the bricks, as the abutting ends of the bricks would not present sullicient surface to retain the clay or mortar. On the contrary, by forming the partition-walls in accordance with my invention these walls are of such thickness and so bonded together that thei will resist lateral strain and can be carried to any desired height before the latticework is built up between thepartitioi'i'walls, and, moreover, the lattice-work can he re moved for repairs without the necessity of removing the partition-walls, which still serve as guides to insure the proper alignment of the new lattice brick-work.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. A hot-blast stove or like structure having main partition-walls for directing the travel of gases through the stove and having lattieebrick-work intermediate said main partition-walls, one or more of said main partition-walls being constructed of bricks much broader than the lattice-bricks, said bricks being formed with cut-away corners, whereby said main partition wall or walls may be built and stand independently of the lattice-bricks, and whereby vertical grooves orseats will be formed to receive the ends of the lattice-bricks and serve as guides in laying the lattice brick-work, substantially as described.

2. A hot-blast stove or like structure having main partition-walls for directing the travel of gases through the stove and having lattice brick-work intermediate said main partition-walls, one or more of said main partition-walls being constructed of bricks much broader than the lattice-bricks, said bricks being formed with grooves intermediate their ends, whereby said main partition wall or walls may be built and stand independently of the lattice-bricks, and whereby vertical grooves or seats will be formed to receive the ends of the latticebricks and serve as guides in laying the lattice brick-work, substantially as described.

3. A hot-blast stove or like structure having main partition-walls for directing the travel of gases alternately up and down through the stove and having lattice brickwork intermediate said main partitionwalls, one or more of said main partition-walls being formed of broad bricks, the corners and edges of which are cutaway to form vertical grooves to receive the ends of the narrower latticebricks and serve as guides in laying said lattice brick-work, substantially as described.

4. A hot-blast stove or like structure having main partition-walls for directing the travel of the gases alternately up and down through the stove and having lattice brickwork intermediate said main partition-walls, one or more of said main partition-walls being formed of broad bricks, the corners and edges IIO of which are cutaway to form vertical grooves to receive the ends of the narrower latticebricks, and the abutting ends of the bricks forming the partition-walls having substantially parallel faces, substantially as described.

5. A hot-blast stove or like structure having main partition-walls for directing the travel of the gases alternately up and down through the stove and having lattice brickwork intermediate said main partition-walls, one or more of said main partition-walls being formed of broad bricks, the corners and edges of which are cutaway to form vertical grooves to receive the ends of the narrower latticebricks, the bricks of said partition-walls being laid with their courses breaking joint, substantially as described.

6. A hot-blast stove or like structure having main partition-walls for directing the travel of the gases alternately up and down through the stove and having lattice brickwork intermediate said walls, one or more of said main partition-Walls being formed of bricks of equal length and breadth, having their corners and edges cut away to form grooves adapted to receive the ends of the lattice-bricks, the bricks of said partition wall or walls being laid with their courses breaking joint, and the alternate rows of said bricks having the cut-away spaces of their edges at the center of the wall, substantially as described. 1

CHARLES H. FOO'IE.

Witnesses:

GEO. P. FISHER, J r., I. B. CARPENTER. 

